Villain For The Flash/Supergirl Musical Crossover Revealed

The Arrowverse’s massive four-show crossover “Invasion” may be done and dusted but there’s still one more crossover for the CW’s DC superheroes shows to come this season: the musical two-parter that will straddle Supergirl and The Flash. But who or what could get everybody singing in those episodes? Now we know.

“It is going to be the Music Meister,” revealed executive producer Greg Berlanti at the Television Critics Association’s press tour on Sunday. “We’re finishing writing the script this weekend.”

The Music Meister was actually created for a 2009 episode of the animated series Batman: The Brave and the Bold called “Mayhem Of The Music Meister”. Voiced by Neil Patrick Harris, he could control people through sing.

So, of course, speculation is immediately rife that Harris could reprise the role. “We haven’t gone about casting it yet,” said Berlanti. “But it’s the right question, though.”

“When we get to the musical episode, both Barry and Kara will find themselves at pivotal crossroads on their respective series,” says executive producer Andrew Kreisberg. “The experience of going through the musical will have a great impact on both series moving forward.”